I too wish more links courses were played on the EPGA. I'm definitely watching this year's Dutch Open because it's being played on a links. I may even tape it so I can watch it over and become more familiar with the course. I very rarely watch the European tour (mostly because I'm not around in the mornings) and unless the tournament is exciting or on a great course I don't watch the PGA Tour anymore either.
The remark about the spectators not walking around in the dunes is probably a main reason that the great links courses don't want the tournament. In a thread about what great courses we'd like to see host the Open, somebody pointed out the RCD wouldn't want it because the whins would get trampled. I agree that this was probably a good reason. The Walker Cup crowds will be much smaller than an Open.
There are other courses that could host this tournament that don't have to worry about large dunes and whins, but are still great links courses. Rosses Point comes to mind, as does Castlerock (it's the Irish Open, not the Republic of Ireland Open) and although I haven't played it, Murvagh would seem to fit the bill here as well. And with Baltray and Portmarnock already hosting sucessful events, I would think that you could have a rota of these courses along with a mix of the parkland courses and have a very exciting tournament every year. It would also spread the tournament around the country which it should, because again it's the Irish Open, not the Dublin Area Open.